EP1743490B1 - Elektrisch angetriebene schalttafel - Google Patents

Elektrisch angetriebene schalttafel Download PDF

Info

Publication number
EP1743490B1
EP1743490B1 EP05746781A EP05746781A EP1743490B1 EP 1743490 B1 EP1743490 B1 EP 1743490B1 EP 05746781 A EP05746781 A EP 05746781A EP 05746781 A EP05746781 A EP 05746781A EP 1743490 B1 EP1743490 B1 EP 1743490B1
Authority
EP
European Patent Office
Prior art keywords
communications
patch panel
power
network
active
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05746781A
Other languages
English (en)
French (fr)
Other versions
EP1743490A2 (de
Inventor
Ronald A. Nordin
Masud Bolouri-Saransar
Michael V. Doorhy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panduit Corp
Original Assignee
Panduit Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panduit Corp filed Critical Panduit Corp
Publication of EP1743490A2 publication Critical patent/EP1743490A2/de
Application granted granted Critical
Publication of EP1743490B1 publication Critical patent/EP1743490B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/14—Distribution frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/03—Power distribution arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/035—Cooling of active equipments, e.g. air ducts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/13—Patch panels for monitoring, interconnecting or testing circuits, e.g. patch bay, patch field or jack field; Patching modules
    • H04Q1/135—Patch panels for monitoring, interconnecting or testing circuits, e.g. patch bay, patch field or jack field; Patching modules characterized by patch cord details
    • H04Q1/136—Patch panels for monitoring, interconnecting or testing circuits, e.g. patch bay, patch field or jack field; Patching modules characterized by patch cord details having patch field management or physical layer management arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2201/00—Constructional details of selecting arrangements
    • H04Q2201/80—Constructional details of selecting arrangements in specific systems
    • H04Q2201/802—Constructional details of selecting arrangements in specific systems in data transmission systems

Definitions

  • This invention is directed generally to communications components and more specifically is directed to systems and methods for managing communications networks using active jacks.
  • LAN local area network
  • VoIP voice over internet protocol
  • a system which provides documentation, management and trouble shooting capabilities should do so while keeping the need for human involvement at access points or patch panels to a minimum.
  • telephone networks and data networks have been maintained as two separate networks with their own wiring requirements and peculiarities. This has largely been due to the regulatory requirements on telephone service to supply life line capability and electrical issues such as a relatively high DC ring-tone voltage.
  • LAN wiring schemes have followed telephone schemes involving wall jack panels leading back to patch panels.
  • cable types and characteristics have remained distinct. This is true for large offices, residential and Small Office-Home Office (SOHO) and Multi-Dwelling Units (MDU) installations.
  • SOHO Small Office-Home Office
  • MDU Multi-Dwelling Units
  • US 2004/0073597 discloses a system for managing and documenting a local area communications network by using active electronic modules to control operation of power sourcing equipment and power devices.
  • a system which uses an active electronic jack.
  • the active jack can be located at the wall in an enterprise office, in a patch panel within the cable distribution plant, in a user device or in two or more of these areas.
  • the active jack includes at least two 10/100 Mb/s Ethernet ports and is a network element (NE) on the local area network (LAN).
  • One Ethernet port of the active jack is the network port and connects to the horizontal wiring of the LAN system.
  • At least one other port is the user port into which Ethernet capable devices, such as a personal computer (PC) or a Voice over IP (VoIP) telephone, plugs into in order to gain access to the LAN.
  • the active jack may act as a two port Ethernet switch routing data between the two ports.
  • physical location information (i.e., room, floor, etc.) is associated with the MAC address of the active jack. Since the active jack has a MAC address it responds to Address Resolution Protocol (ARP) requests from the network and transmits ARP messages when powered up or queried to indicate presence on the network.
  • ARP Address Resolution Protocol
  • the ARP message and the associated physical location information of the active jack can be used to provide information regarding the connectivity of the structured cable system, i.e., the LAN cable plant.
  • the active jack is an electronic element that requires a source of DC power which can be obtained from Power Supplying Equipment (PSE) such as an IEEE 802.3AF compliant source.
  • PSE Power Supplying Equipment
  • Such sources are deployed in networks as the source of DC power for an attached powered device (PD) such as a VoIP telephone that receives power according to a power-over-network scheme.
  • PD powered device
  • the power consumption of the active jack is minimal, with the remaining power forwarded to a powered device (PD) if one is connected.
  • PSE equipment such as an Ethernet switch or IP router is used.
  • a patch panel or mid-span patch panel can be used.
  • a managed structure cable PSE system is obtained. The scope of management that a patch panel has can be enhanced if an active jack is used between the patch panel and the end device.
  • use of active jacks facilitates monitoring the state of the patch cords and the horizontal cable system to provide a managed, structured cable system. If there is a removal or movement of a particular cable, the active jacks connected by the cable will lose upstream network connection.
  • An active jack in a patch panel can detect the change periodically, for example, via once-per-second "heart beat" IP transmissions to the upstream switch. Because the PSE and PD communicate, the PSE can instantaneously report opens in the patch cord.
  • an active jack can send a message to a neighboring active jack to report communication problems.
  • the active jack may send out an ARP message to indicate that it is back on line with any other devices connected to it.
  • the switch port to the patch panel port is thus identified, an important aspect to managing the patch cord connectivity. Since the physical location information can be associated with active jacks, even momentary changes to the cable plant may be recognized and logged.
  • the active wall jack is a managed network element, remote visibility is gained by the management and operations components of a communications network.
  • the active jack provides for remote monitoring, obviating or reducing the need to send out a technician to determine the state of the equipment. Service, can be remotely suspended or re-instated.
  • end point devices which connect to a network using active jacks can be inventoried and controlled as well.
  • these management and security aspects are utilized when customers use Soft IP phones or VOIP external hardware phones.
  • the active wall jacks can offer power over Ethernet (to power the phone) and/or provide a physical location address to support E911 service.
  • PSE switches may be used to ensure that all the enterprise switches have enough DC power to survive an AC outage.
  • the internal switches will continue to direct and manage VOIP calls to the outside world but deny other IP data transactions.
  • an advantage of the power patch panel with the active jack is that it can allow the upstream switches to power down during an AC power outage. The traffic can then be directed to a "lifeline" VOIP gateway from the patch panel, with the lifeline VOIP gateway supporting voice traffic and/or a reduced volume of data traffic.
  • a patch panel for supplying power to powered devices via communications cabling.
  • Power may be provided under the IEEE 802.3af standard or via another protocol such as a proprietary protocol.
  • FIG. 1 a is an isometric view of an active wall jack
  • FIG. 1b is a side view of an active wall jack
  • FIG. 2a is a schematic diagram of an active wall jack
  • FIG. 2b is a schematic block diagram of an alternative embodiment of an active wall jack
  • FIGS. 3a, 3b, and 3c illustrate different configurations of active and standard wall jacks in outlet panels
  • FIG. 4a, 4b , 4c, and 4d are side views of alternative embodiments of active wall jacks according to the present invention.
  • FIG. 5 is a block diagram illustrating the entry of location data into an active wall jack
  • FIG. 6 is a block diagram illustrating power distribution and cable management schemes using for active wall jacks
  • FIG. 7 is a block diagram illustrating a communications network using active jacks according to one embodiment of the present invention.
  • FIG. 8 is a block diagram illustrating an emergency powering system incorporating patch panels with active jacks
  • FIG. 9 is a schematic view of a patch panel with active jacks and shared circuitry
  • FIG. 10 is a schematic view of an active jack according to one embodiment of the present invention.
  • FIG. 11 is a block diagram of a patch panel implementation according to one embodiment of the present invention.
  • FIG. 12 is a block diagram of a patch panel implementation according to another embodiment of the present invention.
  • FIG. 13 is a block diagram of a patch panel implementation according to another embodiment of the present invention.
  • FIG. 14 is a block diagram of a patch panel implementation according to another embodiment of the present invention.
  • FIG. 15 is a block diagram of a multiple-dwelling unit network according to one embodiment of the present invention.
  • FIG. 16 is a block diagram of a network according to one embodiment of the present invention.
  • FIG. 17 is a cross-sectional view of a powered patch panel assembly according to one embodiment of the present invention.
  • FIG. 18 is a top view of a powered patch panel circuit assembly according to the embodiment of FIG. 17 ;
  • FIG. 19 is a block diagram showing the use of a powered patch panel according to one embodiment of the present invention.
  • FIGS. 20a and 20b are, respectively, front and top views of straight powered patch panels in a rack environment.
  • FIGS. 21a and 21b are, respectively, front and top views of angled powered patch panels in a rack environment.
  • the active jack 10 comprises two housings 12a and 12b which can form plug receiving openings 14 as shown in the drawing for the housing 12b.
  • one connector of the active jack 10 is a pug and the other connector is an insulation displacement connector (IDC).
  • the housings 12a and 12b may be of a type used for communication connectors as described more fully in U.S. Pat. No. 6,371,793 , "Low Crosstalk Modular Communication Connector," by Doorhy et al., issued Apr. 16, 2002.
  • the PCB 18 has an x dimension of approximately 5/8 inches and a y dimension of approximately 2 inches and is of a multi-layer construction with a maximum copper area fill for heat dissipation, and is capable of supporting electronic components 20.
  • the housing is shown in an exploded view away from the circuit board 18 to expose thermal contacts 22 which in one embodiment aid in conducting heat from the circuit board 18 and components 20 to the housing components such as component 12b.
  • the active jack 10 is shown in FIG. 1b in relation to a mountable faceplate 24 of the type typically used as communication ports in wall locations.
  • the thermal design of the active jack 10 supports the environment within the enclosure of a data outlet. Since according to some embodiments there is virtually no airflow in this enclosure, heat dissipation is not effective.
  • the active jack design may incorporate a low thermal resistance contact to the outside of the enclosure through the connector housing 12b, as shown in FIG. 1 b.
  • the housing is constructed of a high thermal conductivity material, such as metal-impregnated material, to aid in the dissipation of generated heat.
  • the electronic components 20 on the printed circuit board 18 are provided within one or both of the housings 12a and 12b of the active jack 10.
  • FIG. 2a a schematic drawing of an active wall jack 10 according to one embodiment of the present invention is shown.
  • the components of the active jack unit 10 according to one embodiment of the present invention are mounted on the PCB 18.
  • the components shown in Fig. 2a are shown as functional units which may be realized in various forms of integration.
  • the components include an at least dual port Ethernet physical device (PHY) 26 comprising receivers 28a and b and transmitters 30a and 30b. While a dual port Ethernet device is shown in FIG. 2 , it is to be understood that the principles of the present invention can be applied to active jacks having more than two ports, as further discussed below.
  • PHY physical device
  • the receivers 28 and transmitters 30 are electrically connected to respective receive transformers 32a and b and transmit transformers 34a and b.
  • the receive transformers 32a and b and the transmit transformers 34a and b are further electrically connected to a plurality of conductors (ref 16 in FIG. 1 ) of the respective housings 12a and b.
  • the conductors may take the form of a network-side connection 37 and a user-side connection 39.
  • the PHY 26 is connected to an Ethernet Media Access Controller (MAC) processor 36 which functionally forms a two-port Ethernet switch.
  • MAC Ethernet Media Access Controller
  • power for the circuit of the active jack 10 is obtained from an IEEE 802.3AF compliant PSE source which according to one embodiment supplies negative common-mode voltage which is extracted from the center tap of the receive transformer 32a to a negative rail 38 and a positive common-mode voltage which is extracted from the transmit transformer 34a to a positive rail 40.
  • the IEEE 802.3AF standard also allows for the negative and positive lines to be switched.
  • a DC-to-DC converter 42 is connected to the negative rail 38 and positive rail 40 and supplies the circuitry of the active jack 10 with power.
  • a resistor 44 is placed across the voltage rails 38 and 40 with sufficient resistance to signal to the PSE the presence of a Power Requiring Device (PD).
  • PD Power Requiring Device
  • the resistor 44 has a resistance of 26 k ⁇ , though greater or lesser resistances may be used in particular embodiments of the invention.
  • the voltage rails 38 and 40 are electrically connected through an optional switch 46 to the center taps of the transmit transformer 34b and receive transformer 32b to allow other PDs downstream to obtain power from the PSE.
  • the IEEE 802.3AF draft standard does not cover multiple PDs on a given circuit so the power requirements of intermediate PDs such as the active jack 10 must be very small, typically less than a watt.
  • the optional switch 46 may be controlled by the local MAC processor to provide power control over downstream PDs for management and/or security purposes and is discussed further below.
  • the MAC processor 36 which controls a light emitting diode (LED) 48.
  • the MAC processor 36 serves as a network port identification component, storing and providing identification information when requested.
  • the LED(s) 48 are mounted on the PC board 18 and light is conducted by a light pipe 50 to the exterior jack housing 12b.
  • the LEDs may be mounted on the housing 12 and electrically connected to the PCB 18.
  • one or more LEDs may be associated with each active jack 10 and with each jack housing 12.
  • additional LED ports can be made available to support control or monitoring of endpoint devices.
  • different colored lights or additional lights may be employed to indicate that an installation is or is not complete and to aid in the monitoring and maintenance of cable connections.
  • Such embodiments may provide installation or maintenance personnel with information needed to locate a break in cable connectivity and thereby pinpoint the connection that requires attention.
  • a logic chip 51 carries out the functions of the active jack, including such functions as the forwarding of communications through the active jack, regeneration of signals by the active jack, monitoring and reporting of data throughput, memory storage for installation instructions and user instructions, logical identification of the active jack, and switching of the active jack to enable or disable communications through the active jack.
  • the logic chip 51 includes a memory component for storing a template of instructions for an installer to follow and/or one or more data fields for an installer to fill during installation of the active jack.
  • the logic chip 51 is connected to a network-side connection 53 and a user-side connection 55.
  • Active jacks may be deployed in power-over-Ethernet environments.
  • the active jacks may consume the power needed for their operation while falling below the level of power consumption that would identify the active jacks as powered devices in the power-over-Ethernet environment.
  • Active jacks in such an environment forward power for provisioning to powered devices.
  • FIG. 3a a face plate 24a according to one embodiment of the invention is shown with one active jack 10.
  • Another embodiment is face plate 24b, shown in FIG. 3b , with two active jacks 10a-b.
  • face plate 24c shown in FIG. 3c , with two active jacks 10a-b and a passive jack 52. It is to be understood that several alternative embodiments employing multiple active and passive jacks may be implemented in specific installations.
  • FIGS. 3a, 3b, and 3c are LED indicators 49 for facilitating installation and maintenance of active jacks.
  • the active jack unit 10 is incorporated into a wall panel mounted in a wall 54 behind a face plate 24 so that the user-side jack housing 12b is accessible within the user area 56 as shown.
  • the active jack unit 10 is connected to a horizontal cable 58 by means of a terminating plug 60, which facilitates testing and repair of either the active jack unit 10 or the horizontal cable 58.
  • the active jack unit 10 can be connected to a horizontal cable via an insulation displacement connector.
  • Active jacks according to the present invention also support the use of multiple user-side connections and/or multiple network-side connections within one active jack unit. Such embodiments may be useful in implementations in which one user device is connected to more than one network on the network side. Further, more than one user device, or user devices belonging to more than one account owner on a network, may be connected to a single active-jack and access one or multiple networks on the network side of the active jack. Constructions of active jacks having multiple network-side connections also support dual-homing operation for active jacks. In this operation, an active jack can monitor more than one network-side connection for operability. If a primary network connection becomes inoperable or suffers other communications problems, active jacks according to the present invention may automatically switch to a secondary network connection. This provision for redundancy of network connections can significantly enhance the reliability of network access at an active jack employing such a dual-homing system.
  • FIGS. 4b , 4c, and 4d Embodiments of active jacks according to the present invention using multiple user-side and/or network-side connections are shown in FIGS. 4b , 4c, and 4d .
  • the active jacks of FIGS. 4b , 4c, and 4d are incorporated into wall panels, but it is to be understood that they could alternatively be incorporated into other network components as desired.
  • FIG. 4b shows an active jack having two network-side connector housings 12a and 12c for connection to two network-side terminating plugs 60a and 60b which in turn are connected to one or more networks via two horizontal cables 58a and 58b.
  • the active jack of FIG. 4b allows for one connection in a user area 56 to have access to more than one network connection. While two network connections have been shown, it is to be understood that more than two network connections may be employed on the network side in this and other embodiments.
  • FIG. 4c an active jack having two user-side connector housings 12b and 12d for connection to two user devices.
  • One network-side connector housing 12a is shown for connection to a network-side terminating plug 60, which in turn is connected to a network via a horizontal cable 58.
  • This embodiment allows two user devices to be connected to the active jack assembly.
  • each of the user-side connector housings 12b and 12d can support the functionality of a separate active jack, the embodiment of FIG. 4c enables all active jack functions to be equally applied to more than one user-side device via a direct wall connection. While two user-side connections have been shown, it is to be understood that more than two user-side connections may be employed in this and other embodiments.
  • FIG. 4d shows an active jack embodiment in which two network-side connector housings 12a and 12c and two user-side connector housings 12b and 12d are employed.
  • more than one user device such as a VOIP phone or other user device, may be connected to more than one network-side connection.
  • the embodiment of FIG. 4d allows for a dual-homing application for an active jack wall assembly having multiple user-side active jacks.
  • multiple users or multiple user devices on the user side 56 of the jack may be provided with network redundancy in the event of failure of a primary network or other communications problems.
  • an active jack 10 mounted in the wall 54 of an area 62 connected via a horizontal cable 58 to a patch panel 64 and through a patch cord 66 to an IP router 68 is shown.
  • a specific active jack 10 is associated with its physical location information in a database.
  • the physical location of the arena 62 may be associated with information regarding the active jack- e.g. , its MAC address-in a database 70, which according to some embodiments is an E911 database or a database recognized by an E911 program.
  • devices within the area 62 and connected to the active jack 10 may be identified according to item type or item model, thereby enabling an inventory of items connected to active jacks 10 and the real-time monitoring of equipment connected to networks via active jacks 10.
  • active jacks distributed in classrooms allow for centralized monitoring of equipment connected to the school network via active jacks.
  • the physical location of that computer or optical projector-in addition to the logical location of the device in the computer network- can easily be determined as long as the equipment is connected to the network.
  • inventory information corresponding to the physical location of devices connected to the network may be associated with a graphical map of a network's physical locations to provide a real-time depiction of device locations within a network.
  • personnel engaged in the installation of an active jack may associate the active jack and the active jack's physical location by entering the location information using an application running on a PC 72 which communicates with the connected local active jack 10 which in turn, as stated above, has its own MAC address.
  • the association of the MAC address of the local active jack 10 with the location data can be recorded on the PC 72 and later transferred to a management database 70 after a work period of active jack installations.
  • the associated information is input directly into the database 70 over the connected network.
  • personnel use a test instrument 74, which provides a simpler interface to achieve the same results.
  • the test instrument 74 can also perform a variety of network tests to ensure proper network installation and connectivity.
  • a networked computer 76 is used to update the location database based on work order entry information.
  • the database 70 as depicted in FIG. 5 may reside as part of a network manager system, as part of the IP router 68 or as part of a voice gateway for VOIP systems.
  • FIG. 6 three connection paths are shown to illustrate methods of managing a structured interconnection cable network 78 using active jacks 10.
  • the structured network used for this example is a PSE IP switch/router 80 connected by patch cords 82 to a first patch panel 84 having passive jacks as ports and by a patch cord 86 to a second patch panel 88 which has active jacks 10c as ports.
  • a user device 92a such as a VOIP phone
  • User devices for use with this and other embodiments of the present invention may be phones such as VOIP phones, computers, and the like and may be powered devices that draw power from network connections.
  • the device 92a In the first connection path 90 if there is an open connection anywhere in the cable system or if the device 92a is a powered device and is disconnected from the wall jack 52, the device 92a will power down. This can be detected by the PSE IP switch/router 80 but the reason- e.g ., cable plant issue, an office connection or device powering down-cannot be determined. If a patch cord 82 or the connecting horizontal cable 94a were moved the movement would only be detected as the powering down of the device 92a.
  • a patch panel containing active jacks as ports may be considered a managed interconnect patch panel because it enables the monitoring and control of connections similarly to a cross-connect patch panel system while requiring only one patch panel.
  • a user device 92b is connected to the network 78 by means of an active wall jack 10a.
  • a cable movement or an open circuit in either the patch cord 82 or the horizontal cable 94b causes the user device 92b (if the user device is a powered device) and the active jack 10a to power down.
  • the PSE IP switch/router 80 may note in a database that the user device 92b and the active jack 10a are no longer present, i.e ., drawing power.
  • the PSE IP switch/router 80 notes that a powered device is connected due to the sensing of a power request at the PSE IP switch/router 80. Furthermore, the active jack 10a and the device 92b send Ethernet ARP messages on powerup indicating presence on the network. If only the device 92b is disconnected then its loss will be detected by the PSE IP switch/router 80 and the active jack 10a can still be reached and queried by management software. Further, when only the user device 92b is disconnected and later reconnected, on power restoration only the re-powered device 92b will respond with the Ethernet ARP message. The active jack 10a and thereby the user device 92b can be associated with a given physical location, assisting management with notification of disrupted service.
  • a user device 92c is connected to the network 78 by means of an active wall jack 10b and a horizontal cable 94c to a patch panel 88 which contains active jacks 10c.
  • the patch panel 88 is, in turn, connected via patch cords 86 to the PSE IP switch/router 80.
  • open circuit breaks, cable movements, and/or movement of the user device 92c can be isolated and separately identified as the connecting network is segmented by active devices 92c, 10b and 10c.
  • Each of the active devices mentioned respond to Ethernet ARP requests and produce Ethernet ARP messages on power up situations. For example, if there is a movement of the patch cord 86, the user device 92c, the active jack 10b and the patch panel jack 10c will all power down. At this point the PSE notes that the user device changed state in the amount of power requested and can thus distinguish between only a user device 92c removal and horizontal or patch cord open circuits and/or movements. When power is restored all previously powered down devices send Ethernet ARP requests on the network indicating presence. Furthermore, if the interconnection between a port of the PSE device 80 and an active port on the patch panel 88 or between the patch panel 88 and the active jack 10b has been changed then the location of the change can be determined and managed.
  • FIG. 7 the use of the active jack 10 to control network access to a LAN 100 is illustrated.
  • user devices 102a-n such as VOIP phones, are attached to the network through respective active jacks 10a-n in respective locations 104a-n. While only four user devices are shown in four locations, it is to be understood that systems and methods according to the presentation may be used with a number of devices in a number of locations.
  • the active jacks 10a-n are connected to a patch panel 106 by a horizontal cable plant 108.
  • the patch panel 106 is connected to a PSE IP router device 110 which is connected to an uninterrupted power source (UPS) 112 and supplies power via the IEEE 802.3AF draft standard to downstream power requiring devices, e.g . 102a-n and 10a-n.
  • the PSE device 110 is connected to an IP router 114 which also serves as a VOIP gateway and is connected to or contains a database 116.
  • a network manager 118 is also connected to the LAN 100 and in one embodiment of the present invention is capable of monitoring and controlling the various network elements such as the routers 110 and 114 and the active jacks 10a-n via Simple Network Management Protocol (SNMP) messages.
  • SNMP Simple Network Management Protocol
  • network managers execute network management programs for implementing network management tasks.
  • the active jack 10 has a DC power switch 46 which is controlled by the local processor 36.
  • the active jack 10 contains the switch 46 and thus both the data connectivity and the power to any downstream device can be controlled, for example by the local processor 36, enabling enhanced security features such as endpoint isolation, device inventory, and authorization.
  • the network manager 118 can control the network elements to disable network access to any endpoint either at periodic intervals or in response to an external stimulus such as an unauthorized request for service. This may be accomplished by the network manager 118 sending signals to processors 36 located at active jacks 10 to open the switches 46 at specific locations, thereby preventing data flow at those locations. There are applications whereby during certain times of the day, access to a managed network can be restricted.
  • Use of the active jack 10 in networks also permits usage monitoring. For example, it may be useful to restrict access from some office to sensitive or restricted internet or intranet sites or locations. If an unauthorized access is initiated, then the network manager 118, aware of the intrusion, can have the option of shutting the active jack 10 off as well as logging the location of the active jack that the requesting device is using.
  • FIG. 8 a system according to one embodiment of the present invention of providing emergency power via a patch panel as well as managing the structured cable system using active jacks at the patch panel is illustrated.
  • User VOIP phones 120a-n in user areas 121 a-n are connected through active wall jacks 10a-n via a horizontal cable plant 108 to a powered patch panel 122.
  • the powered patch panel 122 is connected to an upstream IP switch 124, which during normal operation is the routing device for the VOIP phones 120a-n.
  • the powered patch panel 122 is also connected to a local emergency power supply 126, such as an emergency battery, and an emergency voice gateway 128, which is also connected to the local emergency power supply 126.
  • the upstream switch 124 may power down and the power patch panel 122 may divert voice traffic to the local gateway 128.
  • data services may be curtailed in a power outage but voice services are maintained for emergency situations.
  • active jacks are provided within the patch panel 122 as three-ported devices.
  • one port is used for the user connectivity, one port for network connectivity and the third port for connectivity to the emergency voice gateway 128.
  • the connectivity to the emergency gateway 128 from the patch panel 122 is via a shared Ethernet connection.
  • the patch panel uses a network-side switching element to connect the network ports of the patch panel active jacks to a shared Ethernet bus 130.
  • FIG. 9 a block diagram of one embodiment of a powered patch panel 122 is illustrated.
  • active jack units 10a-x of a 24-port patch panel 122 are mounted on a common printed circuit board 132.
  • a processor 134 is electrically connected to and controls the activity of the active jacks 10a-x via a bus 136.
  • a DC-to-DC power converter 138 converts an incoming power supply to a power supply as required by local circuitry.
  • the power converter 138 may convert an incoming 48 volt power supply to 3.3 volts required by the local circuitry.
  • the power for the local circuitry is distributed along a power connection 140 to the active jacks 10a-x in order to forward the power to downstream powered devices.
  • the active jack 10x is assigned to extract 48 volts from an upstream PSE and distribute the 48 volts via an incoming power connection 142 to the DC-to-DC converter 138.
  • alternative active jacks such as the active jack 10w may also be used for power extraction, as for example when drawing power from a redundant upstream PSE.
  • the DC-to-DC power converter 138 may determine from which source (e.g ., 10w or 10x) power will be used.
  • an additional jack or jacks may be employed for the sole purpose of power extraction.
  • FIG. 10 an alternative construction for an active jack 144 according to one embodiment of the present invention is shown.
  • the active jack 144 may, for example, be used in the embodiment of FIG. 9 , in which a common processor 134 and a common DC-to-DC power converter 138 is used and the individual jacks need not extract power from an upstream PSE.
  • the active jack 144 of FIG. 10 comprises upstream transformers 146 and 148 connected to upstream drivers 150 and 152 respectively, and downstream transformers 154 and 156 connected to downstream drivers 158 and 160, respectively.
  • a switch 162 is operatively connected to the power connection 140 and under processor control via the bus 136 can control the power distributed via downstream power connectors 164 and 166 to the downstream transformers 154 and 156 in order to forward power to downstream powered devices. Thus, only the downstream transformers 154 and 156 need to be center-tapped for the purpose of forwarding power. According to yet another embodiment of the present invention, the switch 162 may also be operatively connected to the receive (Rx) and transmit (Tx) signals for the purpose of interrupting the data connection.
  • the active jacks 10 have integrated LEDs that aid the installer in either cross-connect or interconnect systems.
  • FIG. 11 illustrates an interconnect system in which LEDs 168 associated with active jacks 10 on a patch panel 122 can be illuminated or flash patterns to aid the installer.
  • LEDs may indicate where patch cords 86 or horizontal cables 108 are to be connected to the patch panel 122.
  • the patch panel 122 is disposed along a communication pathway between a PSE IP switch/router 170 and horizontal cables 108.
  • illumination of the active jack LEDs is achieved through SNMP messages from a management entity.
  • LEDs In addition to the facilitation of installation provided by LED functionality, LEDs also allow for improved cable management following installation by providing maintenance personnel with visual indications of where inoperable cables are located as well as by providing visible instructions for reorganizing cables in a communications network. While only one LED has been shown associated with each of the active jacks 144, it is to be understood that multiple LEDs may be associated with each active jack in some embodiments of the current invention.
  • FIG. 12 Another embodiment of the present invention is shown in FIG. 12 , in which patch panels 122a and 122b are deployed in a cascaded master-slave configuration. Patch panels deployed in the cascaded manner shown in FIG. 12 enable cross-connect systems with LEDs 168 on each panel indicating to an installer where patch cords are to be removed or installed.
  • an electrical supply such as a 48 volt DC electrical supply
  • a local power source 172 which may be an AC line PSE or an emergency DC battery pack making the powered patch panel 122 a PSE device.
  • a power supply such as a 48 volt DC electrical supply, can be obtained by means of one of the local jacks 10x, as shown in FIG. 9 , from an upstream PSE.
  • a power supply such as a 48 volt DC electrical supply to the patch panel 122
  • a power supply can be obtained from two independent sources, PSEs 174a and 174b, by means of patch cords 176a and 176b using active jacks, such as jacks 10k and 10l, within the patch panel 122, thus providing redundant DC power sources.
  • a multiple-dwelling unit (MDU) according to one embodiment of the present invention is illustrated.
  • Using active jacks allows service activation at individual dwelling units.
  • security and management of communications for residential and small office/home office (SOHO) applications can be facilitated.
  • a broadband router 178 is connected to a wide area network 180 for external connectivity and to a distribution system within the MDU via patch cords 86 to a patch panel 182, which may be a powered patch panel with powered active jacks.
  • the patch panel 182 may optionally include one or more active jacks 10 for management purposes. From the patch panel 182 a horizontal cable plant connects individual locations 184a-n, which may be individual dwellings.
  • Each location 184a-n includes a wall mounted active jack 10a-n and a user device 186a-n.
  • Each active jack 10a-n has a MAC address and physical location information associated with the active jack.
  • Power for the active jacks 10 and the user devices 186a-n may be obtained from a UPS source connected to the broadband router 178 or the patch panel 182. Integrating active jacks into user areas and/or into the broadband router 178 allows for remote management and diagnosis of cabling infrastructure issues, increased security of the cabling infrastructure, service activation ( i.e ., turning service on and off) and monitoring, power over Ethernet applications, and indication of devices' physical locations. Performance monitoring is also enhanced because the exact physical and logical network location of a problem connection can be identified centrally by a service provider, without the need for more extensive investigation of basic location issues.
  • Multiple dwelling unit applications of the present invention may be extended to residential, office, and hotel networks.
  • the distribution of active jacks throughout these networks enables a variety of useful features.
  • One use for active jacks 10a-n distributed throughout a network is the implementation of toll-for-service systems. Such a system may be implemented, for example, in a hotel in which each of the locations 184a-n is a hotel room or a conference room.
  • the active jacks 10a-n enable the monitoring of data throughput and the reporting of data throughput to a network manager.
  • the network manager may charge a set fee for the amount of data requested or sent by the devices 186a-n.
  • each of the active jacks 10a-n may be switched on or off by a network manager, the ability to use the active jacks 10a-n in the locations 184 a-n may be centrally controlled to allow use of individual active jacks only for those who have paid for use of the active jacks, including the ability to halt data flow through the active jacks 10a-n once a paid-for time period has expired. Payment schemes of payment per data packet or other data unit and time-based payment may be implemented, allowing for the efficient allocation of network bandwidth to those who pay for it.
  • Active jacks may be distributed in a network tree architecture, such that network access by several users of separate active jacks, for example within a conference room, may be easily managed by a network manager without the need to address each active jack within an access-enabled area.
  • Active jacks according to the present invention may be connected to other active jacks provided within a network, and active jacks provided within walls may be connected to other active jacks provided in walls or to active jacks provided in patch panels. Further, in some network architectures according to the present invention, active jacks provided within patch panels may be connected to other network jacks provided in patch panels.
  • active jacks in a multiple-dwelling unit as shown in FIG. 15 also enhances cable management for a service provider by allowing the identification of communication problems at individual spans of cable.
  • Centralized control and monitoring of active jacks also allows a network manager to determine if unauthorized network access-or network "pirating"-is attempted and further provides the network manager with information necessary to determine the physical location of attempted unauthorized access.
  • Active jacks according to the present invention can be used to extend the physical range of Ethernet systems. By regenerating signals received, active jacks positioned along a communication pathway serve to increase the effective range of signals, resulting in a sturdier communication pathway. Also, since each active jack in some embodiments of the invention regenerates an Ethernet signal it is not necessary to co-locate IP switches and routers with a patch panel. Further, because active jacks can be disposed within patch panels or at wall jacks, communications pathways can be designed to take the greatest advantage of active jack placement while keeping costs low. Active jacks may also be used in combination with wireless network elements, such as wireless access points ("WAPs”) to provide the features of active jacks in wireless networks.
  • WAPs wireless access points
  • FIG. 16 shows a block diagram of a communications network employing active jacks to extend the network range.
  • a network element 188 such as a switch, has a first radius "R1" within which the network element may conduct network signals via wired connections.
  • the network element 188 has an operable area 190 denoted by a first dotted circle “C1.”
  • Providing a wired connection 192 to an active jack 10 positioned near the perimeter of the operable area 190 of the network element 188 will increase the effective area of the system because the active jack 10 can regenerate communication signals.
  • a second circle “C2" having a second radius "R2" shows the extended effective area 194 achieved when the active jack 10 is employed.
  • active jacks 10 used for the extension of range as shown in FIG. 16 may be provided as wall jacks or as active jacks within patch panels.
  • wireless access points 198 and active jacks 10 may be deployed in a variety of configurations as desired in particular networking applications, and that active jacks may be provided within areas served by wireless access points to regenerate signals from the wireless access point along an additional cabled line.
  • R1 and R2 have been shown approximately equivalent to each other in FIG. 16 , it is to be appreciated some embodiments of the present invention may employ two different radii.
  • Wireless access points and dual-homing active jacks (described above with reference to FIG. 4b ) may be employed to switch device access from a primary wireless access point to a secondary wireless access point when networking problems develop with the primary wireless access point.
  • the patch panel assembly 200 is adapted for use in a powered patch panel for providing power to end-point devices such as, for example, VOIP telephones.
  • the patch panel is a 24-port mid-span patch panel capable of supplying power over Ethernet (PoE) under the IEEE 802.3af standard and under a proprietary power-providing technique such as the technique employed by Cisco Systems, Inc.
  • the patch panel includes power source control circuitry for supplying power to endpoint devices.
  • management connectivity to a local area network (LAN) is accomplished in a daisy chain manner through a Network Interface Card (NIC).
  • NIC Network Interface Card
  • a patch panel according to the present invention is capable of supplying 48 V DC power over 100 meters of unshielded twisted-pair (UTP) cabling.
  • UTP unshielded twisted-pair
  • the detection of devices adapted to receive power via the IEEE 802.3af standard is accomplished first by scanning.
  • a second scheme is used to scan for powered devices complying with another protocol, such as the protocol used by Cisco Systems, Inc.
  • a power-supplying patch panel may support 10/100Base-T Ethernet transmissions through 24 ports in one 19" EIA standard rack space.
  • the patch panel is adapted to receive power from a local power source and provide power to powered devices using communications cables, without requiring separate power sources for each powered device.
  • the patch panel assembly 200 contains RJ-45 jacks 202 on a front panel 203, such as a metal face plate.
  • Standard 110 punch-down blocks 204 are provided in a rear panel 205 in the rear of the patch panel assembly 200.
  • LED indicators 206 are provided for display on the front panel 203 to show powered device (PD) status. Additional LEDs may be provided to show system status. According to one embodiment, two LEDs of different colors are provided for each port, allowing additional information to be conveyed. Two LEDs (not shown) may be provided on the rear panel 205 near NIC ports (not shown) to provide visual indications of system management status.
  • the LEDs 206 may be provided on a front PCB 208, with a light pipe 210 serving as a conduit to allow the light to be visible on the front panel 203.
  • a main printed circuit board 212 holds electronics mounted to a surface mount side 214 and to a through-hole-and-surface-mount side 216.
  • the main printed circuit board 212 is connected via a front flexible circuit board 218 to the front PCB 208 and via a rear flexible circuit board 220 to a rear PCB 222.
  • the rear printed circuit board is connected to the punch-down blocks 204 and is supported by a mechanical support 224.
  • the flexible circuit boards 218 and 220 may be connected to PCBs with tabs 226.
  • the incorporation of flexible circuitry as an interconnect within the panel reduces cost, reduces the size of the unit, and improves performance and flexibility.
  • the distance L from the RJ-45 jacks 202 to the punch-down blocks 204 is approximately four inches.
  • a powered patch panel 228 is shown along a network pathway between an Ethernet switch 230 and a user PoE device 232.
  • a patch cord 234 connects the Ethernet switch 230 to the powered patch panel 228 and horizontal cabling 236 connects the powered patch panel 228 to the user PoE device 232.
  • the horizontal cabling 236 is connected to the powered patch panel 228 via, for example, 110 punch-down connections (not shown) at the rear of the powered patch panel 228.
  • the powered patch panel 228 may include powered patch panel assemblies 200 as shown in FIGS. 17 and 18 .
  • powered patch panels 228 according to the present invention may be provided in different configurations.
  • FIGS. 20a and 20b respectively illustrate front and top views of powered patch panels 228a having a straight configuration, with multiple powered patch panels 228a mounted in a rack environment 238.
  • FIGS. 21 a and 21 b respectively illustrate front and top views of powered patch panels 228b having an angled configuration mounted in a rack environment 238.
  • the powered patch panels 228b having the angled configuration allow for improved management of patch cords 234.
  • a powered patch panel may provide all PoE capabilities without any external software.
  • a software manager may also be provided.
  • Management software may be provided as a stand-alone Element Manager (EM) that will be used in implementations without a Network Management System (NMS).
  • EM Element Manager
  • NMS Network Management System
  • Management capabilities may also be provided through NMS software.
  • each patch panel requires an IP address in order to utilize management capabilities, with Dynamic Host Control Protocol (DHCP) being the default method of assigning an IP address.
  • DHCP Dynamic Host Control Protocol
  • Powered patch panels according to the present invention may incorporate active jacks or they may be provided with non-active communication jacks. In the latter case, powered patch panels are adapted for use as standard patch panels with the additional function of providing power to powered devices.
  • Powered patch panel EM software has several capabilities. For example, EM software can allow a network administrator to discover all compatible powered patch panels in a network. Physical location information regarding the powered patch panel-such as patch panel room location and rack number-may be entered into the EM software. Individual ports may be selectively turned on or off upon command. Ports may be selectively powered down depending on criticality. For example, ports may be powered down selectively in the event of a power outage requiring emergency backup power. Real-time graphical display of panel power status and fault conditions, and port and PD status, may be provided. Some or all of these features may be incorporated into EM software.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Small-Scale Networks (AREA)
  • Electronic Switches (AREA)
  • Logic Circuits (AREA)

Claims (9)

  1. Kommunikations-Schaltfeld (200) zur Verbindung zwischen Endgeräten und vorgeschalteten Netzgeräten in einem Netz, welches Kommunikations-Schaltfeld (200) aufweist:
    eine Mehrzahl von vorderseitigen Kommunikationsverbindern (202), die in einer Frontplatte (203) des Kommunikations-Schaltfelds (200) vorgesehen sind;
    eine Mehrzahl von rückseitigen ÜKommunikationsverbindern (204), die in einer Rückwand (205) des Kommunikations-Schaltfelds (200) vorgesehen sind, wobei jeder rückseitige Kommunikationsverbinder (204) mit einem entsprechenden Verbinder der Mehrzahl von vorderen Kommunikationsverbindern (202) elektrisch verbunden ist;
    eine zwischen jedem der Mehrzahl von vorderen Kommunikationsverbindern (202) und der Mehrzahl von rückseitigen Kommunikationsverbindern (204) angeschlossene Stromquellen-Steuer-Schaltung (202), wobei die Stromquellen-Steuer-Schaltung wirksam ist, um Strom von einer Stromquelle entlang von Übertragungskabeln Endgeräten zuzuführen; und
    einen ersten Verwaltungsanschluss zur Herstellung einer Verbindung zwischen dem Kommunikations-Schaltfeld (200) und einem Netzverwaltungssystem des Netzes, dadurch gekennzeichnet, dass
    die Stromquellen-Steuer-Schaltung angeordnet ist, um gemäß einem von mindestens zwei verschiedenen Arbeitsmodi zur Zuführung von Strom von einer Stromversorgung zu Endgeräten entlang von Übertragungskabeln gemäß dem gewählten Arbeitsmodus selektiv zu arbeiten, wobei das Kommunikations-Schaltfeld (200) angeordnet ist, die Endgeräte abzutasten, um Geräte zu detektieren, die angeordnet sind, Strom gemäß dem gewählten Arbeitsmodus der beiden verschiedenen Arbeitsmodi zu empfangen.
  2. Kommunikations-Schaltfeld (200) nach Anspruch 1, wobei die Mehrzahl von vorderseitigen Kommunikationsverbindern (202) RJ-45-Buchsen aufweisen.
  3. Kommunikations-Schaltfeld (200) nach Anspruch 1, wobei die Mehrzahl von rückseitigen Kommunikationsverbindern (204) Auflegeblöcke (punch-down blocks) aufweisen.
  4. Kommunikations-Schaltfeld (200) nach Anspruch 1, weiters mit einem zweiten Verwaltungsanschluss, wobei mehrere Kommunikations-Schaltfelder (200) unter Verwendung einer Prioritätskaskadenverbindung zu einem einzigen Ethernet-Schaltanschluss zur Verwaltung verbunden sein können.
  5. Kommunikations-Schaltfeld (200) nach Anspruch 1, weiters mit einer Mehrzahl von Stromanzeigeleuchten (206) auf der Frontplatte (203) des Kommunikations-Schaltfelds (200), wobei jede Stromanzeigeleuchte (206) einem der vorderseitigen Anschlüsse zugeordnet ist und den Status eines dem entsprechenden vorderseitigen Anschluss zugeordneten Endgeräts anzeigt.
  6. Kommunikations-Schaltfeld (200) nach Anspruch 5, wobei jede Stromanzeigeleuchte (206) eine auf einer Leiterplatte (212) im Kommunikations-Schaltfeld (200) installierte LED und einen zwischen der LED und der Frontplatte (203) des Kommunikations-Schaltfelds (200) geschalteten Lichtleiter (210) aufweist.
  7. Kommunikations-Schaltfeld (200) nach Anspruch 1, wobei die Stromquellen-Steuer-Schaltung wirksam ist, um Verwaltungsbefehle auszuführen, welche Verwaltungsbefehle mindestens einen Befehl ausgewählt aus der Gruppe bestehend aus folgenden Befehlen enthalten: einem Netzverwalter erlauben, alle kompatiblen angeschalteten Schaltfelder (200) aufzuspüren, Informationen über den physischen Ort des Kommunikations-Schaltfelds (200) weiterzuleiten, Kommunikationsverbinder selektiv anzuschalten, und Echtzeit-Informationen über den Stromstatus und Störungsbedingungen des Felds zu liefern.
  8. Verfahren zum Zuführen von Strom von einer Stromversorgung zu Endgeräten unter Verwendung eines Kommunikations-Schaltfelds (200), das zwischen den Endgeräten und vorgeschalteten Netzgeräten in einem Netz geschaltet ist, welches Verfahren umfasst:
    Vorsehen einer Mehrzahl von vorderseitigen Kommunikationsverbindern (202) in einer Frontplatte (203) des Kommunikations-Schaltfelds (200) und einer Mehrzahl von rückseitigen Kommunikationsverbindern (204) in einer Rückwand (205) des Kommunikations-Schaltfelds (200), wobei jeder rückseitige Kommunikationsverbinder (204) mit dem entsprechenden Verbinder der Mehrzahl von vorderseitigen Kommunikationsverbindern (202) elektrisch verbunden wird;
    Vorsehen eines ersten Verwaltungsanschlusses zur Herstellung einer Verbindung zwischen dem Kommunikations-Schaltfeld (200) und einem Netzverwaltungssystem des Netzes;
    Zwischenschalten einer Stromquellen-Steuer-Schaltung zwischen jedem der Mehrzahl von vorderseitigen Kommunikationsverbindern (202) und der Mehrzahl von rückseitigen Kommunikationsverbindern (204), wobei die Stromquellen-Steuer-Schaltung angeordnet ist, selektiv gemäß einem von mindestens zwei verschiedenen Arbeitsmodi zu arbeiten, um Strom von einer Stromversorgung entlang von Übertragungskabeln den Endgeräten zuzuführen, welches Verfahren gekennzeichnet ist durch das Abtasten der Endgeräte, um Endgeräte zu detektieren, die angeordnet sind, Strom gemäß einem gewählten Arbeitsmodus der beiden verschiedenen Arbeitsmodi zu empfangen, und Strom von der Stromquellen-Steuer-Schaltung gemäß dem gewählten Arbeitsmodus den detektierten Endgeräten zuzuführen.
  9. Verfahren nach Anspruch 8, weiters umfassend das Ausführen eines von einer Mehrzahl von Verwaltungsbefehlen an der Stromquellen-Steuer-Schaltung, wobei die Verwaltungsbefehle mindestens einen Befehl ausgewählt aus der Gruppe bestehend aus folgenden Befehlen enthalten: einem Netzverwalter erlauben, alle kompatiblen angeschalteten Steckerfelder (200) aufzuspüren, Informationen über den physischen Ort des Kommunikations-Schaltfelds (200) weiterzuleiten, Kommunikationsverbinder selektiv anzuschalten und Echtzeit-Informationen über den Stromstatus und Störungsbedingungen des Felds zu liefern.
EP05746781A 2004-05-03 2005-04-29 Elektrisch angetriebene schalttafel Not-in-force EP1743490B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US56776504P 2004-05-03 2004-05-03
US11/119,009 US7455527B2 (en) 2004-05-03 2005-04-29 Powered patch panel
PCT/US2005/014993 WO2005107397A2 (en) 2004-05-03 2005-04-29 Powered patch panel

Publications (2)

Publication Number Publication Date
EP1743490A2 EP1743490A2 (de) 2007-01-17
EP1743490B1 true EP1743490B1 (de) 2011-09-14

Family

ID=35187702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05746781A Not-in-force EP1743490B1 (de) 2004-05-03 2005-04-29 Elektrisch angetriebene schalttafel

Country Status (7)

Country Link
US (4) US7455527B2 (de)
EP (1) EP1743490B1 (de)
JP (1) JP5058786B2 (de)
CN (1) CN101099397B (de)
AT (1) ATE524929T1 (de)
TW (1) TWI361531B (de)
WO (1) WO2005107397A2 (de)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480510B1 (en) 1998-07-28 2002-11-12 Serconet Ltd. Local area network of serial intelligent cells
US6473608B1 (en) 1999-01-12 2002-10-29 Powerdsine Ltd. Structure cabling system
US7612470B2 (en) * 1999-01-12 2009-11-03 Microsemi Corp.—Analog Mixed Signal Group Ltd. System for providing power over Ethernet through a patch panel
US6956826B1 (en) 1999-07-07 2005-10-18 Serconet Ltd. Local area network for distributing data communication, sensing and control signals
US6690677B1 (en) 1999-07-20 2004-02-10 Serconet Ltd. Network for telephony and data communication
US6549616B1 (en) 2000-03-20 2003-04-15 Serconet Ltd. Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
IL135744A (en) 2000-04-18 2008-08-07 Mosaid Technologies Inc Telephone communication system through a single line
US6961303B1 (en) 2000-09-21 2005-11-01 Serconet Ltd. Telephone communication system and method over local area network wiring
IL144158A (en) 2001-07-05 2011-06-30 Mosaid Technologies Inc Socket for connecting an analog telephone to a digital communications network that carries digital voice signals
EP2523358A3 (de) 2001-10-11 2012-11-21 Mosaid Technologies Incorporated Steckdose mit Analogsignaladapter
US7656903B2 (en) 2002-01-30 2010-02-02 Panduit Corp. System and methods for documenting networks with electronic modules
IL152824A (en) 2002-11-13 2012-05-31 Mosaid Technologies Inc A socket that can be connected to and the network that uses it
US20050141431A1 (en) 2003-08-06 2005-06-30 Caveney Jack E. Network managed device installation and provisioning technique
IL159838A0 (en) 2004-01-13 2004-06-20 Yehuda Binder Information device
JP5058786B2 (ja) * 2004-05-03 2012-10-24 パンドウィット・コーポレーション 電力供給型パッチパネル
US7823026B2 (en) * 2004-10-07 2010-10-26 Cisco Technology, Inc. Automatic system for power and data redundancy in a wired data telecommunications network
US7793137B2 (en) * 2004-10-07 2010-09-07 Cisco Technology, Inc. Redundant power and data in a wired data telecommunincations network
US7849351B2 (en) * 2004-10-07 2010-12-07 Cisco Technology, Inc. Power and data redundancy in a single wiring closet
DE102004046401B4 (de) * 2004-09-24 2006-07-13 Siemens Ag Kommunikationssystem, Verteilerelement und Netzwerkgerät
US8259562B2 (en) * 2004-10-07 2012-09-04 Cisco Technology, Inc. Wiring closet redundancy
US7873058B2 (en) 2004-11-08 2011-01-18 Mosaid Technologies Incorporated Outlet with analog signal adapter, a method for use thereof and a network using said outlet
US7724650B2 (en) * 2004-11-30 2010-05-25 Cisco Technology, Inc. Multi-station physical layer communication over TP cable
US7294940B2 (en) * 2005-02-01 2007-11-13 System Engineering International Power over ethernet battery backup
US7613124B2 (en) * 2005-05-19 2009-11-03 Panduit Corp. Method and apparatus for documenting network paths
KR20060130517A (ko) * 2005-06-14 2006-12-19 팬듀트 코포레이션 물리적 네트워크 토폴로지 정보를 모니터링하기 위한 방법및 장치
US20060282539A1 (en) * 2005-06-14 2006-12-14 Cisco Technology, Inc. (A California Corporation) Method and apparatus for conveying data through an ethernet port
EP1922786A1 (de) 2005-08-08 2008-05-21 Panduit Corp. Syteme und verfahren zur erkennung einer steckschnurendverbindung
US20070038769A1 (en) * 2005-08-12 2007-02-15 Ryan Todd C Method and/or system of scheduling transmission of a power signal
US8064473B2 (en) * 2005-08-26 2011-11-22 Ziqiang He Local area network
US7234944B2 (en) * 2005-08-26 2007-06-26 Panduit Corp. Patch field documentation and revision systems
US20070054618A1 (en) * 2005-09-08 2007-03-08 Lewis Jonathan F System and method for wireless access point with integrated emergency devices
US7978845B2 (en) 2005-09-28 2011-07-12 Panduit Corp. Powered patch panel
US7602705B1 (en) 2005-10-12 2009-10-13 Garrettcom, Inc. Dual-homing layer 2 switch
GB0522554D0 (en) * 2005-11-04 2005-12-14 Tyco Electronics Ltd Uk An assembly for permitting power-over-ethernet connection
US8428054B2 (en) * 2005-11-14 2013-04-23 Lantronix, Inc. Daisy chaining device servers via ethernet
US7811119B2 (en) 2005-11-18 2010-10-12 Panduit Corp. Smart cable provisioning for a patch cord management system
US7768418B2 (en) 2005-12-06 2010-08-03 Panduit Corp. Power patch panel with guided MAC capability
US7512817B2 (en) * 2006-01-20 2009-03-31 Rit Technologies Ltd. Management of a network supplying power over data lines
FR2896891B1 (fr) * 2006-01-27 2008-08-22 Legrand Snc Dispositif amovible d'injection de puissance electrique pour reseau ethernet
US8477910B2 (en) * 2006-02-23 2013-07-02 Microsemi Corp.—Analog Mixed Signal Group Ltd. System and method for location identification
US7974305B2 (en) * 2006-03-24 2011-07-05 Broadcom Corporation Inband management for power over ethernet midspans using an embedded switch
US8014518B2 (en) * 2006-05-26 2011-09-06 Nsgdatacom, Inc. Patch panel apparatus and system including patch cord path tracing
TWI326142B (en) * 2006-09-22 2010-06-11 Delta Electronics Inc Signal exchange system and transforming connector thereof
US9661599B2 (en) * 2006-10-02 2017-05-23 Cisco Technology, Inc. Digitally signing access point measurements for robust location determination
US7564795B2 (en) * 2006-10-02 2009-07-21 Cisco Technology, Inc. Obtaining per-port location information for wired LAN switches
US20080175159A1 (en) * 2006-12-13 2008-07-24 Panduit Corp. High Performance Three-Port Switch for Managed Ethernet Systems
US7573254B2 (en) 2007-04-12 2009-08-11 Commscope Inc. Of North Carolina Systems and methods of identifying patch cord connections in a communications patching system using common mode transmission
US20080274646A1 (en) * 2007-05-04 2008-11-06 Schneider Electric Gmbh Ethernet connectors
US20090002139A1 (en) * 2007-06-29 2009-01-01 Commscope, Inc. Of North Carolina Apparatus for selectively providing power over ethernet in an upgradeable patch panel and related methods
WO2009049291A1 (en) * 2007-10-11 2009-04-16 Panduit Corp. Communication outlet identification system using ethernet signals
WO2009052381A2 (en) 2007-10-19 2009-04-23 Panduit Corp. Communication port identification system
WO2009086632A1 (en) * 2008-01-04 2009-07-16 Nyce Technology, Inc. Network connection using an electro-optical media converter with integrated switch
US20090195224A1 (en) * 2008-01-31 2009-08-06 Basler Electric Company Digital Excitation Control System Utilizing Self-Tuning PID Gains and an Associated Method of Use
US9460684B2 (en) * 2008-01-31 2016-10-04 Hewlett-Packard Development Company, L.P. System and method for illuminating connector ports
US7938700B2 (en) 2008-02-21 2011-05-10 Panduit Corp. Intelligent inter-connect and cross-connect patching system
CN102106157B (zh) * 2008-07-02 2014-08-06 瑞特技术有限公司 用于监控物理层连接性的系统和方法
US20100011097A1 (en) * 2008-07-11 2010-01-14 Terry Cobb Methods of Using Control Communications to Identify Devices that are Connected Through a Communications Patching System and Related Communications Patching Systems
WO2010009554A1 (en) * 2008-07-22 2010-01-28 Nyce Technology, Inc. Modular system, apparatus and method for providing a network connection
US8588050B2 (en) 2008-11-12 2013-11-19 Panduit Corp. Intelligent patching system
US20100149731A1 (en) * 2008-12-11 2010-06-17 Michael Blair Hopper Electrical panel
US7762839B2 (en) * 2008-12-22 2010-07-27 Surtec Industries, Inc. Patch panel assembly
US8306935B2 (en) 2008-12-22 2012-11-06 Panduit Corp. Physical infrastructure management system
JP5274671B2 (ja) 2008-12-31 2013-08-28 パンドウィット・コーポレーション 挿入検出および発光機能を備えたパッチコード
US8214680B1 (en) 2009-02-12 2012-07-03 Hewlett-Packard Development Company, L.P. PoE powered management circuitry using out-of-band data port
CA2756265A1 (en) 2009-02-13 2010-08-19 Adc Telecommunications, Inc. Inter-networking devices for use with physical layer information
US8128428B2 (en) 2009-02-19 2012-03-06 Panduit Corp. Cross connect patch guidance system
GB2480019B (en) * 2009-02-19 2015-01-28 Commscope Inc Patch panel cable information detection systems and methods
US9123217B2 (en) 2009-06-29 2015-09-01 Commscope, Inc. Of North Carolina Methods of automatically recording patching changes at passive patch panels and network equipment
WO2011044068A2 (en) * 2009-10-07 2011-04-14 Molex Incorporated System for and method of network asset identification
US20110187536A1 (en) * 2010-02-02 2011-08-04 Michael Blair Hopper Tracking Method and System
US9225539B2 (en) * 2010-01-15 2015-12-29 Hewlett Packard Enterprise Development Lp Storing data relating to cables
US20110202650A1 (en) * 2010-02-12 2011-08-18 Brocade Communications Systems, Inc. Method and system for monitoring data flows in a network
CN101841426A (zh) * 2010-04-26 2010-09-22 北京龙源欣盛科技有限公司 电子配线架管理系统和方法
US8711890B2 (en) * 2010-07-16 2014-04-29 Broadcom Corporation Method and system for modularized configurable connector system for ethernet applications
CN102566684A (zh) * 2010-12-08 2012-07-11 鸿富锦精密工业（深圳）有限公司 计算机装置机箱
US8952707B2 (en) 2011-01-21 2015-02-10 Commscope, Inc. Of North Carolina Plug insertion detection circuits and related methods and communications connectors
JP5728245B2 (ja) * 2011-02-21 2015-06-03 矢崎総業株式会社 コネクタ
EP2689566B1 (de) 2011-03-25 2015-09-16 ADC Telecommunications, Inc. Identifikatorkodierungsschema zur verwendung mit mehrpfad-steckverbindern
WO2012134932A2 (en) 2011-03-25 2012-10-04 Adc Telecommunications, Inc. Event-monitoring in a system for automatically obtaining and managing physical layer information using a reliable packet-based communication protocol
US20120246347A1 (en) 2011-03-25 2012-09-27 Adc Telecommunications, Inc. Systems and methods for utilizing variable length data field storage schemes on physical communication media segments
WO2012134935A2 (en) * 2011-03-25 2012-10-04 Adc Telecommunications, Inc. Dynamically detecting a defective connector at a port
US8622756B2 (en) 2011-05-18 2014-01-07 Ole Falk Smed Multi-function power strip
US9590761B2 (en) 2011-09-23 2017-03-07 Commscope Technologies Llc Detective passive RF components using radio frequency identification tags
US9678133B2 (en) 2012-03-12 2017-06-13 Commscope, Inc. Of North Carolina Intelligent patching systems and methods using electrical cable diagnostic tests and inference-based mapping techniques
CN103580888B (zh) * 2012-07-25 2018-11-20 罗森伯格（上海）通信技术有限公司 一种电子配线架及智能电子配线系统
US11113642B2 (en) 2012-09-27 2021-09-07 Commscope Connectivity Uk Limited Mobile application for assisting a technician in carrying out an electronic work order
CA2896718A1 (en) * 2012-12-28 2014-07-03 Volcano Corporation Intravascular ultrasound imaging apparatus, interface architecture, and method of manufacturing
GB2512569A (en) * 2013-01-28 2014-10-08 Buffalo Project Ltd Power distribution system
CN103227737A (zh) * 2013-04-26 2013-07-31 江西省电力公司信息通信分公司 可与网管进行交互的数字配线装置
US9407510B2 (en) 2013-09-04 2016-08-02 Commscope Technologies Llc Physical layer system with support for multiple active work orders and/or multiple active technicians
US9853708B2 (en) * 2014-01-24 2017-12-26 Cooper Technologies Company Wiring device with integrated wireless signal extender
US10200203B2 (en) 2014-07-16 2019-02-05 Honeywell International Inc. Controllers with integrated power over ethernet network switches
US10418764B2 (en) 2014-08-06 2019-09-17 Molex, Llc Patch panel frame for circuit board module
JP2016076436A (ja) * 2014-10-08 2016-05-12 日立金属株式会社 中継器
US9793664B2 (en) * 2016-03-11 2017-10-17 Panduit Corp. Communication connectors
US10591385B2 (en) 2017-12-01 2020-03-17 Exfo Inc. Method and system for multi-fiber cable testing
US11340137B2 (en) 2017-12-01 2022-05-24 Exfo Inc. Method and system for multi-link connection testing
US10938167B2 (en) 2018-03-06 2021-03-02 Commscope Technologies Llc Automated capture of information about fixed cabling
US10499531B2 (en) * 2018-04-18 2019-12-03 Schneider Electric It Corporation Rack level network switch
US11558680B2 (en) 2019-09-12 2023-01-17 Commscope Technologies Llc Internet of things (IOT) system for cabling infrastructure
CN113810202B (zh) * 2020-06-17 2022-12-13 华为技术有限公司 用于管理供电的方法和装置、供电设备以及计算机可读介质

Family Cites Families (152)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661187A (en) 1969-07-28 1972-05-09 Panduit Corp Strap-tensioning and severing tool
US3771098A (en) 1972-05-16 1973-11-06 Neurodyne Dempsey Inc Ground wire monitoring system
US4479228A (en) 1981-03-11 1984-10-23 3Com Corporation Local computer network transceiver
US4767181A (en) 1983-11-17 1988-08-30 American Telephone And Telegraph Company Electrical/lightwave connection arrangement
US4733389A (en) 1986-07-28 1988-03-22 Xerox Corporation Drop cable for a local area network
US4767825A (en) * 1986-12-22 1988-08-30 Kimberly-Clark Corporation Superabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4937825A (en) 1988-06-15 1990-06-26 International Business Machines Method and apparatus for diagnosing problems in data communication networks
US5081627A (en) 1989-07-05 1992-01-14 Casat Technologies, Inc. Status and activity monitor for contention type local area networks
US5089927A (en) 1989-10-12 1992-02-18 Northern Telecom Limited Power feed circuit for digital communications terminal equipment
FR2659513A1 (fr) 1990-03-12 1991-09-13 Cit Alcatel Installation terminale d'abonne pour reseau asynchrone.
US5226120A (en) 1990-05-21 1993-07-06 Synoptics Communications, Inc. Apparatus and method of monitoring the status of a local area network
US5282270A (en) 1990-06-06 1994-01-25 Apple Computer, Inc. Network device location using multicast
US5559955A (en) 1990-09-17 1996-09-24 Cabletron Systems, Inc. Method and apparatus for monitoring the status of non-pollable device in a computer network
US5065798A (en) 1991-01-28 1991-11-19 Panduit Corp. Stretched strap cable tie tensioning and severing tool
IL97227A0 (en) 1991-02-13 1992-05-25 Bynet System Applic Ltd Patching panel
US5421024A (en) 1991-04-30 1995-05-30 Hewlett-Packard Company Detection of a relative location of a network device using a multicast packet processed only by hubs
US5293635A (en) 1991-04-30 1994-03-08 Hewlett-Packard Company Detection on a network by a mapping application of a relative location of a first device to a second device
US5270658A (en) 1991-08-19 1993-12-14 Epstein Barry M Means and method for testing and monitoring a circuit breaker panel assembly
US5233501A (en) 1992-02-27 1993-08-03 Telect, Inc. Digital telecommunication network cross-connect module having a printed circuit board connected to jack switches
US5483467A (en) 1992-06-10 1996-01-09 Rit Technologies, Ltd. Patching panel scanner
US5222164A (en) 1992-08-27 1993-06-22 International Business Machines Corporation Electrically isolated optical connector identification system
US5406260A (en) 1992-12-18 1995-04-11 Chrimar Systems, Inc. Network security system for detecting removal of electronic equipment
CA2102855A1 (en) 1992-12-29 1994-06-30 Albon E. Gilbert Jumper cable selection and routing system
US5437046A (en) 1993-02-24 1995-07-25 Legent Corporation System and method for resolving the location of a station on a local area network
US5526489A (en) 1993-03-19 1996-06-11 3Com Corporation System for reverse address resolution for remote network device independent of its physical address
US5394503A (en) 1993-10-08 1995-02-28 Data Switch Corporation Optical fiber connection monitoring apparatus, patch panel control system and method of using same
DE69330833T2 (de) 1993-12-06 2002-03-28 Agilent Technologies Inc., A Delaware Corp. Stellenidentifizierung in einem Kommunikationssignalisierungsnetz
US5530435A (en) 1993-12-09 1996-06-25 Steelcase Inc. Utility distribution system for modular furniture and the like
US5613873A (en) 1993-12-16 1997-03-25 Dell Usa, L.P. Modular jack with integral light-emitting diode
US5577105A (en) 1994-03-11 1996-11-19 U.S. Robotics, Inc. Telephone call routing and switching techniques for data communications
FR2718546B1 (fr) 1994-04-08 1996-05-31 Luc Lebeau Dispositif de liaison informatique entre appareils avec systèmes de communication hétérogènes, clef relative à un tel dispositif.
US5684796A (en) 1994-05-03 1997-11-04 Bay Networks Group, Inc. Method and apparatus for determining and maintaining agent topology information in a multi-segment network
US5742672A (en) 1994-07-19 1998-04-21 Burk; Peter Installation of a multi-terminal network
IL110859A (en) 1994-09-04 1999-12-31 Rit Techn Ltd Interconnection monitor system for telephone network
US5572640A (en) 1994-12-01 1996-11-05 Hewlett-Packard Company Batch transfer system and method for high performance graphic display of network topology
US5583874A (en) 1994-12-07 1996-12-10 Infonet Computer Systems, Inc. 10Base-T portable link tester
US5532603A (en) 1995-01-27 1996-07-02 Fluke Corporation Cross-talk measurement apparatus with near-end compensation
US5790041A (en) 1995-02-14 1998-08-04 Advanced Micro Devices, Inc. Apparatus and method to display network connection status on a jack panel
US5649001A (en) 1995-03-24 1997-07-15 U.S. Robotics Mobile Communications Corp. Method and apparatus for adapting a communication interface device to multiple networks
US5684959A (en) 1995-04-19 1997-11-04 Hewlett-Packard Company Method for determining topology of a network
US5706440A (en) 1995-08-23 1998-01-06 International Business Machines Corporation Method and system for determining hub topology of an ethernet LAN segment
US6711162B1 (en) * 1995-09-08 2004-03-23 3Com Corporation Method and apparatus for providing proxy service, route selection, and protocol conversion for service endpoints within data networks
US5675813A (en) 1995-10-26 1997-10-07 Microsoft Corporation System and method for power control in a universal serial bus
US5736910A (en) 1995-11-22 1998-04-07 Stewart Connector Systems, Inc. Modular jack connector with a flexible laminate capacitor mounted on a circuit board
US5745682A (en) 1995-12-04 1998-04-28 Ncr Corporation Method and apparatus for utilizing location codes to identify a physical location of a computer station on a NetBIOS computer network
US5898837A (en) 1996-02-23 1999-04-27 Bay Networks, Inc. Method and apparatus for monitoring a dedicated communications medium in a switched data network
US5793975A (en) 1996-03-01 1998-08-11 Bay Networks Group, Inc. Ethernet topology change notification and nearest neighbor determination
US5797767A (en) 1996-05-31 1998-08-25 Berg Technology, Inc. Indicator light modular jack
EP0978060B1 (de) * 1996-06-17 2003-02-05 BRITISH TELECOMMUNICATIONS public limited company Netzwerkbasiertes datenzugriffssystem
US5878030A (en) 1996-06-19 1999-03-02 Wandel & Goltermann Technologies, Inc. Test access port for analyzing high-speed local area network switched environment
GB9615445D0 (en) * 1996-07-23 1996-09-04 3Com Ireland Cascade connection of communicating devices
EP0865334B1 (de) 1996-08-28 2004-04-21 THOMAS & BETTS CORPORATION Werkzeug zum setzen von kabelbindern
US5909429A (en) 1996-09-03 1999-06-01 Philips Electronics North America Corporation Method for installing a wireless network which transmits node addresses directly from a wireless installation device to the nodes without using the wireless network
US5847557A (en) 1997-06-06 1998-12-08 Fincher; William C. Wire pair identification method
US6230193B1 (en) * 1996-10-31 2001-05-08 3Com Corporation Method and apparatus supporting network communications
US5764043A (en) 1996-12-20 1998-06-09 Siecor Corporation Traceable patch cord and connector assembly and method for locating patch cord ends
US5892756A (en) 1997-01-28 1999-04-06 Mtb Insights, Incorporated Portable telecommunication network testing device
US5960416A (en) 1997-02-27 1999-09-28 Block; Robert S. Real time subscriber billing at a subscriber location in an unstructured communication network
US6224417B1 (en) 1997-02-27 2001-05-01 Berg Technology, Inc. Assembly containing a modular jack and a light emitting diode
US5923663A (en) 1997-03-24 1999-07-13 Compaq Computer Corporation Method and apparatus for automatically detecting media connected to a network port
US6131119A (en) 1997-04-01 2000-10-10 Sony Corporation Automatic configuration system for mapping node addresses within a bus structure to their physical location
US5994998A (en) 1997-05-29 1999-11-30 3Com Corporation Power transfer apparatus for concurrently transmitting data and power over data wires
US6327623B2 (en) 1997-05-30 2001-12-04 Texas Instruments Incorporated Computer system with environmental detection
US5991885A (en) 1997-06-11 1999-11-23 Clarinet Systems, Inc. Method and apparatus for detecting the presence of a remote device and providing power thereto
JPH1118120A (ja) 1997-06-20 1999-01-22 Fujitsu Ltd インテリジェントネットワークシステムのプロセス制御方式
US6014667A (en) 1997-10-01 2000-01-11 Novell, Inc. System and method for caching identification and location information in a computer network
US5832964A (en) 1997-10-24 1998-11-10 Pandiut Corp. Cable tie tensioning and severing tool
US6178438B1 (en) 1997-12-18 2001-01-23 Alcatel Usa Sourcing, L.P. Service management system for an advanced intelligent network
US6041352A (en) 1998-01-23 2000-03-21 Hewlett-Packard Company Response time measuring system and method for determining and isolating time delays within a network
US6094261A (en) 1998-01-29 2000-07-25 L-Com, Inc. Method and apparatus for distinguishing fiber-optic cables
US6367018B1 (en) 1998-02-05 2002-04-02 3Com Corporation Method for detecting dedicated link between an end station and a network device
US6185598B1 (en) * 1998-02-10 2001-02-06 Digital Island, Inc. Optimized network resource location
US6055236A (en) 1998-03-05 2000-04-25 3Com Corporation Method and system for locating network services with distributed network address translation
US6212206B1 (en) 1998-03-05 2001-04-03 3Com Corporation Methods and computer executable instructions for improving communications in a packet switching network
US6353614B1 (en) * 1998-03-05 2002-03-05 3Com Corporation Method and protocol for distributed network address translation
US6115468A (en) 1998-03-26 2000-09-05 Cisco Technology, Inc. Power feed for Ethernet telephones via Ethernet link
US6222910B1 (en) 1998-05-29 2001-04-24 3Com Corporation System and method for connecting and interfacing a communications device to a telephone line via a telephone set
US6330598B1 (en) * 1998-06-23 2001-12-11 Ameritech Corporation Global service management system for an advanced intelligent network
US7233978B2 (en) * 1998-07-08 2007-06-19 Econnectix, Llc Method and apparatus for managing location information in a network separate from the data to which the location information pertains
US6002331A (en) 1998-07-20 1999-12-14 Laor; Herzel Method and apparatus for identifying and tracking connections of communication lines
US6205122B1 (en) 1998-07-21 2001-03-20 Mercury Interactive Corporation Automatic network topology analysis
US6229538B1 (en) 1998-09-11 2001-05-08 Compaq Computer Corporation Port-centric graphic representations of network controllers
US6381283B1 (en) 1998-10-07 2002-04-30 Controlnet, Inc. Integrated socket with chip carrier
US6272541B1 (en) 1998-10-08 2001-08-07 International Business Machines Corporation Data processing system and method for determining a physical location of a client computer system coupled to a server via a physical network
US6348874B1 (en) 1998-10-14 2002-02-19 Agilent Technologies, Inc. Power distribution to nodes in a distributed system
US6152762A (en) 1998-11-12 2000-11-28 Berg Technology, Inc. Modular jack with side mounted light emitting diode
US6175865B1 (en) 1998-11-12 2001-01-16 Hewlett-Packard Company Apparatus for automatically configuring network media connections
US6397249B1 (en) 1998-11-24 2002-05-28 International Business Machines Corporation Data processing system and method for determining a physical location of a client computer system
US6496859B2 (en) * 1998-11-25 2002-12-17 Xerox Corporation System for network device location
US6289370B1 (en) 1998-11-30 2001-09-11 3Com Corporation Platform independent enhanced help system for an internet enabled embedded system
US6393474B1 (en) 1998-12-31 2002-05-21 3Com Corporation Dynamic policy management apparatus and method using active network devices
US6674745B1 (en) * 1998-12-31 2004-01-06 3Com Corporation Method and system for mapping phone numbers to IP addresses
US6570974B1 (en) * 1998-12-31 2003-05-27 At&T Corp. Cable connected network server platform for telephone white-yellow page services and emergency 911 location identification
US7346785B2 (en) * 1999-01-12 2008-03-18 Microsemi Corp. - Analog Mixed Signal Group Ltd. Structure cabling system
US6473608B1 (en) * 1999-01-12 2002-10-29 Powerdsine Ltd. Structure cabling system
US7046983B2 (en) * 1999-08-02 2006-05-16 Powerdsine, Ltd. Integral board and module for power over LAN
US6643566B1 (en) * 1999-01-12 2003-11-04 Powerdsine Ltd. System for power delivery over data communication cabling infrastructure
US6285293B1 (en) 1999-02-10 2001-09-04 Avaya Technology Corp. System and method for addressing and tracing patch cords in a dedicated telecommunications system
US6234830B1 (en) 1999-02-10 2001-05-22 Avaya Technology Corp. Tracing interface module for patch cords in a telecommunications system
US6330307B1 (en) 1999-02-10 2001-12-11 Avaya Technology Corp. Display panel overlay structure and method for tracing interface modules in a telecommunications patch system
US6350148B1 (en) 1999-02-10 2002-02-26 Avaya Technology Corp. Method and device for detecting the presence of a patch cord connector in a telecommunications patch system
US6678250B1 (en) * 1999-02-19 2004-01-13 3Com Corporation Method and system for monitoring and management of the performance of real-time networks
US6535490B1 (en) * 1999-03-04 2003-03-18 3Com Corporation High availability spanning tree with rapid reconfiguration with alternate port selection
US6218930B1 (en) 1999-03-10 2001-04-17 Merlot Communications Apparatus and method for remotely powering access equipment over a 10/100 switched ethernet network
US6640308B1 (en) * 1999-04-16 2003-10-28 Invensys Systems, Inc. System and method of powering and communicating field ethernet device for an instrumentation and control using a single pair of powered ethernet wire
US6563824B1 (en) * 1999-04-20 2003-05-13 3Com Corporation Apparatus and methods for determining the correct workstation within a LAN for a LAN modem to route a packet
US6363423B1 (en) 1999-04-26 2002-03-26 3Com Corporation System and method for remotely generating, assigning and updating network adapter card in a computing system
GB2354137B (en) * 1999-05-10 2002-05-15 3Com Corp Supervising a network
US6691161B1 (en) * 1999-05-11 2004-02-10 3Com Corporation Program method and apparatus providing elements for interrogating devices in a network
US6697862B1 (en) * 1999-05-21 2004-02-24 3Com Corporation System and method for network address maintenance using dynamic host configuration protocol messages in a data-over-cable system
US6717914B1 (en) * 1999-05-27 2004-04-06 3Com Corporation System for probing switched virtual circuits in a connection oriented network
GB2350983B (en) * 1999-06-10 2001-10-03 3Com Corp Network problem indication
FI991586A (fi) * 1999-07-09 2001-01-10 Nokia Networks Oy Älyverkkopalveluiden suorituksen hallinta
US6571181B1 (en) * 1999-08-11 2003-05-27 Broadcom Corporation System and method for detecting a device requiring power
US6283775B1 (en) 1999-08-31 2001-09-04 3Com Corporation Electrical connector with automatic switching between multiple devices
US6222908B1 (en) 1999-09-23 2001-04-24 Avaya Technology Corp. Method and device for identifying a specific patch cord connector as it is introduced into, or removed from, a telecommunications patch system
US6317597B1 (en) 1999-09-24 2001-11-13 3Com Corp Methods and system for geographically selecting data modems for data sessions over a wireless channel
US6681252B1 (en) * 1999-09-27 2004-01-20 3Com Corporation System and method for interconnecting portable information devices through a network based telecommunication system
US6546494B1 (en) * 1999-10-06 2003-04-08 Nortel Networks Corporation Providing power to a device over a network transmission medium
EP1100226B1 (de) * 1999-11-04 2010-02-17 Alcatel Lucent Verfahren zur Fernspeisung eines Endgerätes in einem lokalen Netz
US6535983B1 (en) * 1999-11-08 2003-03-18 3Com Corporation System and method for signaling and detecting request for power over ethernet
US6678728B1 (en) * 1999-12-03 2004-01-13 3Com Corporation Method and apparatus for automatically loading device status information into a network device
US6522889B1 (en) * 1999-12-23 2003-02-18 Nokia Corporation Method and apparatus for providing precise location information through a communications network
US6950497B2 (en) * 2000-03-31 2005-09-27 British Telecommunications Public Limited Company Fault location in a telecommunications network
GB0007835D0 (en) * 2000-03-31 2000-05-17 British Telecomm Fault location on a telecommunications network
US6675308B1 (en) * 2000-05-09 2004-01-06 3Com Corporation Methods of determining whether a network interface card entry within the system registry pertains to physical hardware or to a virtual device
EP1167852A3 (de) * 2000-05-18 2003-11-12 Daido Tokushuko Kabushiki Kaisha Diffusionsgebundenes Metallrohr, Rohrexpansionsmethode für diffusionsgebundenes Metallrohr und Verfahren zur Inspektion von diffusionsgebunden Metallrohren
US6701443B1 (en) * 2000-06-19 2004-03-02 Cisco Technology, Inc. Methods and apparatus for discovering a powerability condition of a computer network
US6541878B1 (en) * 2000-07-19 2003-04-01 Cisco Technology, Inc. Integrated RJ-45 magnetics with phantom power provision
US6718030B1 (en) * 2000-08-10 2004-04-06 Westell Technologies, Inc. Virtual private network system and method using voice over internet protocol
US6368159B1 (en) 2000-12-13 2002-04-09 Stewart Connector Systems, Inc. Light pipe for a modular jack
US20030018704A1 (en) * 2001-03-08 2003-01-23 Vasilis Polychronidis Network presence and location agent
EP1261121A3 (de) * 2001-05-22 2004-02-04 Powerdsine Limited Energieverteilung mit digitaler Stromsteuerung
GB2376612B (en) * 2001-06-15 2004-06-09 Ibm Method and apparatus for fault location in a loop network
GB2377118B (en) * 2001-06-27 2003-06-25 3Com Corp Method and apparatus for determining unmanaged network devices in the topology of a network
US20030041238A1 (en) * 2001-08-15 2003-02-27 International Business Machines Corporation Method and system for managing resources using geographic location information within a network management framework
US7162650B2 (en) * 2001-09-26 2007-01-09 D-Link Corporation Network switching apparatus for supplying power to network communication equipment through twisted pair line
US6678357B2 (en) * 2001-09-26 2004-01-13 Siemens Information And Communication Networks, Inc. Internet protocol (IP) emergency connections (ITEC) telephony
US7014500B2 (en) * 2001-10-16 2006-03-21 Adam Belesimo Testing assembly and method for identifying network circuits
US7519000B2 (en) * 2002-01-30 2009-04-14 Panduit Corp. Systems and methods for managing a network
US7330464B2 (en) * 2002-09-25 2008-02-12 Lucent Technologies Inc. Location identification for IP telephony to support emergency services
AU2003274634A1 (en) * 2002-10-15 2004-05-04 Powerdsine Ltd. Direct current power pooling
US7154381B2 (en) * 2003-05-23 2006-12-26 Sonos, Inc. System and method for operating a sensed power device over data wiring
US8223792B2 (en) * 2003-07-14 2012-07-17 Rockstar Bidco, LP Ultra low cost ethernet architecture
US7492059B2 (en) * 2003-10-16 2009-02-17 Microsemi Corp.—Analog Mixed Signal Group Ltd. High power architecture for power over ethernet
US7207846B2 (en) * 2003-11-24 2007-04-24 Panduit Corp. Patch panel with a motherboard for connecting communication jacks
US7200929B2 (en) * 2004-03-31 2007-04-10 Adc Telecommunications, Inc. Patch panel with modules
JP5058786B2 (ja) * 2004-05-03 2012-10-24 パンドウィット・コーポレーション 電力供給型パッチパネル
US7280032B2 (en) * 2005-02-11 2007-10-09 Ortronics, Inc. Apparatus and method for communication system
US7508297B2 (en) * 2005-02-11 2009-03-24 Ortronics, Inc. Apparatus and method for communication system
US20060282529A1 (en) * 2005-06-14 2006-12-14 Panduit Corp. Method and apparatus for monitoring physical network topology information
US7488206B2 (en) * 2006-02-14 2009-02-10 Panduit Corp. Method and apparatus for patch panel patch cord documentation and revision

Also Published As

Publication number Publication date
US7553161B2 (en) 2009-06-30
ATE524929T1 (de) 2011-09-15
US7455527B2 (en) 2008-11-25
WO2005107397A3 (en) 2006-01-26
US20050245127A1 (en) 2005-11-03
TWI361531B (en) 2012-04-01
US7993143B2 (en) 2011-08-09
CN101099397B (zh) 2012-02-08
US20100304577A1 (en) 2010-12-02
US20090081888A1 (en) 2009-03-26
JP5058786B2 (ja) 2012-10-24
US20090263980A1 (en) 2009-10-22
TW200614609A (en) 2006-05-01
EP1743490A2 (de) 2007-01-17
WO2005107397A2 (en) 2005-11-17
JP2008501259A (ja) 2008-01-17
US7771203B2 (en) 2010-08-10
CN101099397A (zh) 2008-01-02

Similar Documents

Publication Publication Date Title
EP1743490B1 (de) Elektrisch angetriebene schalttafel
US7519000B2 (en) Systems and methods for managing a network
EP1661307B1 (de) Netzwerkverwaltete einrichtungsinstallation und provisionierungstechnik
US7978845B2 (en) Powered patch panel
US20060063509A1 (en) System for providing power over Ethernet through a patch panel
CN209402663U (zh) 一种电子配线架和布线系统
US8588402B2 (en) Method and system for providing power and data over a voice grade/pots infrastructure for use in communicating with and/or controlling multiple remote network and non-network devices
WO2020251359A1 (en) Ethernet network with improved network switch.
Palmer Energising the network
Atakishchev et al. Principles of Construction of a Structured Cable System for Communication Networks

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061122

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070223

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602005030034

Country of ref document: DE

Effective date: 20111103

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111215

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 524929

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120114

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120116

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

26N No opposition filed

Effective date: 20120615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602005030034

Country of ref document: DE

Effective date: 20120615

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120429

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130429

Year of fee payment: 9

Ref country code: DE

Payment date: 20130429

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130506

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050429

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005030034

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140429

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140429

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141101

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005030034

Country of ref document: DE

Effective date: 20141101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430